RUSSELL 4021-2 Performance Male Dual Holley Fitting

( Brand: Russell ), ( Part Type: Fitting ), ( Manufacturer Part Number: 4021-2 )

Review RUSSELL Performance #8 Male Dual Feed Holley Fitting

The Russell Performance 4021-2 Male Dual Holley Fitting is an essential accessory for customizing and upgrading your fuel delivery system in high-performance applications. This particular fitting is designed specifically for use with Holley carburetors, catering to the demands of enthusiasts who seek superior functionality, durability, and precision in their automotive projects. This fitting comes in a polished finish, enhancing the visual appeal of your engine compartment while adding performance under the hood.

Measuring 3/8 inches in outside diameter and 3/16 inches in internal diameter, the fitting accommodates two existing Holley carburetor fuel lines, enabling you to simplify and streamline your fuel routing. Crafted from 6061-T6 aluminum, it is both lightweight and strong, capable of withstanding high fuel pressures and temperatures experienced in high-performance setups.

The 4021-2 Dual Holley Fitting features a dot-style, mated O-ring seal that guarantees a leak-free connection. This seal design makes installation effortless, allowing you to securely attach the fuel lines to the carburetor without the need for additional gaskets or sealants. Additionally, the fitting includes a 1/8 NPT thread on each end, which is compatible with various fuel fittings and lines for seamless integration into your fuel system.

Please note that, although the 4021-2 Performance Male Dual Holley Fitting is incredibly versatile and suitable for various high-performance applications, its usage may vary depending on specific engine configurations and fuel system requirements. Fuel compatibility and proper installation procedures should always be considered when applying this fitting to your project, and Russell Performance advises familiarity with basic automotive tools to ensure a successful installation.

In summary, the Russell Performance 4021-2 Male Dual Holley Fitting is an essential accessory for high-performance enthusiasts looking to improve their fuel system capabilities with durability and precision, all while elevating the visual appeal of their engine bay.

The Russell 4021-2 Performance Male Dual Holley Fitting is a popular choice for automotive enthusiasts looking to upgrade their carburetor setup. This fitting is designed to provide a reliable and secure connection for two Holley carburetors. Here are some potential pros and cons to consider before making a purchase.

1. Secure Connection: The Russell Performance Male Dual Holley Fitting is constructed of heavy-davy 304 stainless steel material, which makes it stronger and more durable than other types of fittings. It provides a secure connection between the carburetors and the fuel system, minimizing the risk of leaks and fuel wastage.

2. Flexible Design: The Russell fitting features a swivel design, allowing for easy installation and alignment of the carburetors. This feature also helps to reduce the risk of fuel lines rubbing against each other or other components, which can lead to damage or leaks.

3. Improved Performance: By installing a high-quality fitting like the Russell 4021-2 Performance Male Dual Holley Fitting, you can improve the overall performance of your carburetor setup. The secure and leak-free connection ensures that the correct amount of fuel is delivered to the carburetors at all times, leading to smoother engine operation and better fuel economy.

1. Cost: The Russell 4021-2 Performance Male Dual Holley Fitting is more expensive than some other types of fittings on the market. However, the increased cost is justified by the high-quality materials and flexible design.

2. Installation Complexity: Installing the Russell 4021-2 Performance Male Dual Holley Fitting can be a complex process, especially for those with little experience in automotive modifications. It may require the use of specialized tools and a thorough understanding of the fuel system, which can add to the overall cost and time investment.

The Russell 4021-2 Performance Male Dual Holley Fitting is a high-quality product that offers several advantages to automotive enthusiasts looking to upgrade their carburetor setup. Its secure connection, flexible design, and improved performance make it a worthwhile investment, despite the higher cost and installation complexity compared to other fittings. Ultimately, if you're serious about maximizing the performance of your carbureted engine, the Russell 4021-2 Performance Male Dual Holley Fitting is a recommended choice.

In summary, advantages of purchasing a Russell 4021-2 Performance Male Dual Holley Fitting include its strong and durable construction, flexible design, and improved engine performance. The disadvantages are the higher cost and complexity of installation. Therefore, it is recommended for those who are serious about upgrading their carburetor setup and have the necessary skills and resources to install it properly.

part # 40212 prices

• $20.00-$33.71

specifications carbcaddie:

• brand: Russell
• part type: Fitting
• manufacturer part number: 4021-2

general carbcaddie:

• Car Truck Parts Accessories > Air Fuel Delivery > Carburetor Parts
• condition: New other see details

payments carbcaddie:

• other
• wallet: Google-pay
• credit card: Diners-club

returns carbcaddie:

• policy: No Returns

seller carbcaddie:

• rating: 100.0%
• # reviews: 1452

offer carbcaddie:

• sold: 0
• started: January 25, 2025
• availability: In Stock
• quantity: 1
• options: Ship-to-home
• best offers: True

shipping carbcaddie:

• class: Standard
• carrier: USPS
• service: USPS Ground Advantage
• type: Fixed
• cost: $0.00
• transit: 5-11 Days

Russell 4021-2 Is Similar To:

• Russell Performance 640271 Carburetor Fitting (59.5% similar) $20.49–$35.67. (December 29th, 2024)
• Russell 640350 #8 To 1in -20 Carb Adapt Fitting Red (41% similar) $19.95–$32.82. (February 15th, 2025)
• Russell Performance 641093 Fuel Hose Kit (56.6% similar) $72.95–$75.69. (February 16th, 2025)
• Russell Performance 640233 Carburetor Fitting (59.5% similar) $25.70–$40.95. (February 22nd, 2025)
• Russell Performance 640201 Carburetor Fitting (59.5% similar) $17.95–$36.60. (February 23rd, 2025)
• Russell Performance 640241 Carburetor Fitting (59.5% similar) $22.29–$27.95. (February 25th, 2025)
• Russell Performance 641150 Fuel Hose Kit (56.6% similar) $109.95–$119.00. (May 23rd, 2025)
• Russell 640270 #6 Carter Banjo Fitting (51.9% similar) $20.49–$31.62. (May 28th, 2025)
• Russell 6128 Performance -12 Flared Bulkhead 90 Degree Elbow (50.8% similar) $17.00. (August 25th, 2025)
• Russell Performance 650020 For Holley Tunnel Ram Kit 600/660 Carbs (53% similar) $79.95. (October 30th, 2025)